Composition comprising an oxidatve dye and alkalizing agent

Abstract

An oxidative dyeing composition for keratin fibers, containing 1,4-diamino-2-methoxymethyl-benzene, and/or a salt thereof, and one or more alkalizing agents selected from a metal salt of silicate, metasilicate, disilicate, and phosphate. Where a total concentration of water is 10% by weight or less, calculated to a total weight of the oxidative dyeing composition.

1 . An oxidative dyeing composition for keratin fibers, comprising:
 1,4-diamino-2-methoxymethyl-benzene, and/or a salt thereof; and   one or more alkalizing agents selected from a metal salt of silicate, metasilicate, disilicate, or phosphate,   wherein a total concentration of water is 10% by weight or less, calculated to a total weight of the oxidative dyeing composition.   
     
     
         2 . The oxidative dyeing composition according to  claim 1 , wherein the total concentration of water is 5% by weight or less, calculated to the total weight of the oxidative dyeing composition A. 
     
     
         3 . The oxidative dyeing composition according to  claim 1 , wherein a total concentration of the 1,4-diamino-2-methoxymethyl-benzene is in a range of 0.01% to 65% by weight, calculated to the total weight of the oxidative dyeing composition. 
     
     
         4 . The oxidative dyeing composition according to  claim 1 , wherein the one or more alkalizing agents is selected from sodium salts or potassium salts of silicate, metasilicate, disilicate, or phosphate. 
     
     
         5 . The oxidative dyeing composition according to  claim 1 , wherein a total concentration of the one or more alkalizing agents is in a range of 1% to 80% by weight, calculated to the total weight of the oxidative dyeing composition. 
     
     
         6 . The oxidative dyeing composition according to  claim 1 , wherein a total concentration of carbonates, hydrogen carbonates, bicarbonates, percarbonates, borates, and perborates is less than 10% by weight, calculated to the total weight of the oxidative dyeing composition. 
     
     
         7 . The oxidative dyeing composition according to  claim 1 , further comprising one or more pulverulent excipients. 
     
     
         8 . The oxidative dyeing composition according to  claim 1 , wherein the oxidative dyeing composition is a solid composition at 25° C. and atmospheric pressure. 
     
     
         9 . The oxidative dyeing composition according to  claim 1 , further comprising one or more lipophilic compounds. 
     
     
         10 . The oxidative dyeing composition according to  claim 1 , wherein the oxidative dyeing composition is a hair dyeing oil having a viscosity in a range of 10,000 mPas to 500,000 mPas measured by cone-plate viscometry at 25° C. and atmospheric pressure. 
     
     
         11 . A dyeing product for keratin fibers, comprising:
 the oxidative dyeing composition of  claim 1 ; and   a composition B comprising one or more oxidizing agents.   
     
     
         12 . The dyeing product according to  claim 11 , wherein the composition B is an aqueous composition having a pH in a range of 1 to 6. 
     
     
         13 . The dyeing product according to  claim 11 , wherein the one or more oxidizing agents is hydrogen peroxide, and
 wherein the hydrogen peroxide is present at a concentration in a range of 1% to 20% by weight, calculated to a total weight of the composition B.   
     
     
         14 . The dyeing product according to  claim 11 , wherein a mixing ratio by weight of the oxidative dyeing composition to the composition B is in a range of 1:1 to 1:20. 
     
     
         15 . The dyeing product according to  claim 11 , wherein the composition B further comprises one or more alkylamine salts or alkanolamine salts having the following general structure: 
       
         
           
           
               
               
           
         
         wherein R 4 , R 5 , and R 6  are independently selected from H, linear C 1 -C 6  alkyl which may be substituted with one hydroxyl group, or branched C 3 -C 12  alkyl or alkanol, wherein at least one of R 4 , R 5 , or R 6  is different from H, and Y- is an anion. 
       
     
     
         16 . A method for dyeing keratin fibers, comprising:
 mixing the oxidative dyeing composition of  claim 1  with an aqueous composition comprising one or more oxidizing agents to yield a ready-to-use composition having a pH in a range of 7 to 12;   applying the ready-to-use composition onto keratin fibers and leaving it for a time period in a range of 1 min to 60 min; and   optionally rinsing-off the keratin fibers and optionally drying the keratin fibers.